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We live in an age shaped by scientific research. Medical practice, for example, changes a bit each year because of new discoveries in the laboratory or in drug trials. We have come to expect progress in a variety of technical fields, and science often lives up to our hopes for it. But science can also falter. One of the challenges for non-scientists - whom I call "normal people" - must address is how to interpret new scientific studies. Which ones contain valuable information that should influence our activities or government policies? Which can be put on the back burner of our minds, awaiting further evidence? Scientists are human. Scientists are people. We do our best, but that doesn't make us perfect. Scientists have several reasons to try to promote the work that's been done, quite apart from whatever merit it may have. Scientists want to have successful careers and that means promoting results obtained in the lab or field. For some scientists, professional status really matters, and for most scientists today, further funding is an issue always kept in mind. Dr. E. Kirsten Peters, a native of the rural Northwest, was trained as a geologist at Princeton and Harvard. This column is a service of the College of Agricultural, Human, and Natural Resource Sciences at Washington State University. Read This Article

Scientists reported Wednesday that they had taken a significant step toward altering the fundamental alphabet of life - creating an organism with an expanded artificial genetic code in its DNA. The accomplishment might eventually lead to organisms that can make medicines or industrial products that cells with only the natural genetic code cannot. The scientists behind the work at the Scripps Research Institute have already formed a company to try to use the technique to develop new antibiotics, vaccines and other products, though a lot more work needs to be done before this is practical. The work also gives some support to the concept that life can exist elsewhere in the universe using genetics different from those on Earth. "This is the first time that you have had a living cell manage an alien genetic alphabet," said Steven A. Benner, a researcher in the field at the Foundation for Applied Molecular Evolution in Gainesville, Fla., who was not involved in the new work. But the research, published online by the journal Nature, is bound to raise safety concerns and questions about whether humans are playing God. The new paper could intensify calls for greater regulation of the budding field known as synthetic biology, which involves the creation of biological systems intended for specific purposes.

The economy abounds with hopeful signs as the New Year arrives, enough that the Federal Reserve will begin to put its easy-money punch bowl on a higher shelf by trimming its bond purchases this month. But after five years of crisis, recession and an aren't-we-there-yet recovery, we don't fully trust the signs. And that's why Mesirow Financial economist Diane Swonk sums up the outlook in a nutshell: "2014 could be the breakout year,'' she says. "This is the year when we're going to find out.''